A press release turned up in the comments for a couple of my posts. While that’s not as bad as Viagra-ad spam, it’s not in the spirit of blogosphere. If you post a press release, it will be deleted. Post a comment in your own words, and it will stay.

Continue reading “No Press Releases, Please” →

We like to think of boundaries as being clear-cut borders, but at least in the biological world they generally turn out to be fuzzy zones of change. The line between land and sea is my own favorite example. Last summer my wife and I would sometimes take our oldest daughter Charlotte to the beach. At the time she was a year old and refused to put her toe in the water. This summer she heads straight in, but only about up to her knees. She runs back out and goes back in, repeating the circuit a few dozen times. Next year, I still expect to see her chin above the water line. In her own tadpoling way, Charlotte is reenacting an evolutionary journey taken many times by her fellow mammals–the evolutionary transition back to the water.

Continue reading “Taking the Plunge” →

Love demands an explanation. Less than 5% of mammal species live monogamously, with males and females staying together beyond mating, and fathers helping mothers care for babies. We humans aren’t the most monogamous species of the bunch, but we’re closer to that end of the spectrum than the other end, where mating is little more than ships bumping into each other in the night.

Continue reading “Love Is A Virus” →

In the New York Times this morning, the poet Diane Ackerman has written an essay about the brain, in which she waxes eloquent about its ability to discern patterns in the world. The essay is distilled from her new book, An Alchemy of the Mind, which I’ve just reviewed for the Washington Post. I didn’t much like the book, although it took me a while to figure out what was bothering me about it. If you read the essay, you can get the flavor of the book, not to mention Ackerman’s general style in her previous books (which have taken on subjects such as endangered species and the senses). Ackerman has a fondness for sipping tea, tie-dye dresses, and hummingbird feeders, and an even greater fondness for writing about them. I know people who have been put off by her aesthetics, and I find them cloying as well. But that wasn’t really at the heart of my dislike of the book. (And besides, my own aesthetics leans towards shark tapeworms and dissected sheep brains, so I’m hardly one to complain about other people.) It took me a few days to realize that the problem with the book was embedded in a deeper problem: how we talk about nature (which includes our own minds).

Continue reading “The Inescapable Allure of the Reptile Brain” →